Keep scrolling down for answers and more stats ...
3.
Protons orbit the nucleus of an atom
Electrons orbit the nucleus of an atom
4.
Oxygen is the most abundant element in the universe
Hydrogen is the most abundant element in the universe
5.
Mercury is liquid at room temperature
7.
All bases have hydroxide
8.
Atomic mass is the same as molecular mass
9.
Chemical reactions can occur in both the forward and reverse direction
When reactions are at equilibrium
10.
Metals have high melting points